EP 1010926 A2 20000621 - Seal assembly for an intershaft seal in a gas turbine engine
Title (en)
Seal assembly for an intershaft seal in a gas turbine engine
Title (de)
Zwischenwellen-Dichtungsanordnung für ein Gasturbinentriebwerk
Title (fr)
Dispositif d'étanchéité inter-arbres pour turbine à gaz
Publication
Application
Priority
US 21368698 A 19981217
Abstract (en)
A seal assembly 134 for use in an intershaft seal includes a first seal 136 that seals to a seal plate on an inner rotor shaft 40, a second seal 138 that seals to a seal plate on an outer rotor shaft 42, and an intermediate seal that is supported by a stator assembly 36 and seals to the first seal 134 and the second seal 136. The intermediate seal may include a seal segment 200 affixed to the stator assembly, a ring seal between the seal segment 200 and the first seal 136, and a ring seal between the seal segment 200 and the second seal 138. An intershaft seal with this seal assembly has less flex than a prior art intershaft seal and thereby results in greater durability and less seal wear. <IMAGE>
IPC 1-7
IPC 8 full level
F01D 11/00 (2006.01); F01D 25/00 (2006.01); F02C 7/28 (2006.01); F16J 15/34 (2006.01)
CPC (source: EP US)
F01D 11/003 (2013.01 - EP US); F02C 7/28 (2013.01 - EP US); F16J 15/3464 (2013.01 - EP US); F16J 15/3472 (2013.01 - EP US); F16J 15/3484 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1010926 A2 20000621; EP 1010926 A3 20020703; EP 1010926 B1 20050720; DE 69926203 D1 20050825; DE 69926203 T2 20060112; JP 2000179357 A 20000627; US 6196790 B1 20010306
DOCDB simple family (application)
EP 99309231 A 19991119; DE 69926203 T 19991119; JP 31652399 A 19991108; US 21368698 A 19981217